Ancient Aeolipile -steam Engine, and Magnets for Good Measure...
Intro: Ancient Aeolipile -steam Engine, and Magnets for Good Measure...
The first steam engine was invented by Herron of Alexandria around 150BC (actual date is unknown -- that whole Alexandrian library arson thing :/ and books disagree on dates). The history channel (or was it discovery) called this person Mechanos - I'm not sure where that name came from, but it fits :P
So basically, it is a sealed pressure vessel with steam outlets. Hot steam is pumped in (or generated within) and the steam outlets provide a torque based on their perpendicular component to the radius of rotation. You also need some sort of bearing to allow for rotation ;)
Well, pressure vessel could be a fancy name for soda can....
You'll need:
1 Un-opened soda (or other) can
A few feet of fishing line or other thing string
Awl or other hole punching device
4 tea lights
Two magnets and two ball bearings :P
Videos on steps 1 and 3 ;)
So basically, it is a sealed pressure vessel with steam outlets. Hot steam is pumped in (or generated within) and the steam outlets provide a torque based on their perpendicular component to the radius of rotation. You also need some sort of bearing to allow for rotation ;)
Well, pressure vessel could be a fancy name for soda can....
You'll need:
1 Un-opened soda (or other) can
A few feet of fishing line or other thing string
Awl or other hole punching device
4 tea lights
Two magnets and two ball bearings :P
Videos on steps 1 and 3 ;)
STEP 1: Prepping the Can
Using an awl or other suitable tool -- puncture a small hole about an inch from the top of the can. Be sure to do this in your bathtub/show/sink as it will spray out soda. Then have fun and shake it up to get as much out as possible (or suck the soda out).
Next twist the top tab around and bend it upwards. Remember the goal is to make a sealed pressure vessel with one outlet for steam. If you break the seal, you'll need a new can and you'll need to start over.
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Now (as I discovered in my second attempt), only puncture one hole -- and then slightly dent the can so that the hole points to one side.
Next twist the top tab around and bend it upwards. Remember the goal is to make a sealed pressure vessel with one outlet for steam. If you break the seal, you'll need a new can and you'll need to start over.
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Now (as I discovered in my second attempt), only puncture one hole -- and then slightly dent the can so that the hole points to one side.
STEP 2: Suspend Your Can; Making a Bearing.
Well, to make this work well, you need some sort of bearing (to allow continuous motion). To do this, I epoxied a length of fishing line to one of my little magnets. I then attached this magnet to a steel ball and tied the other end to the upwards-bent soda can tab.
Using my magnetic toy choking hazards, I constructed a little string hanging from the vent above my stove. At the bottom of this string, I placed a ball.
I then attached the two balls together -- this creates a bearing of sorts
Using my magnetic toy choking hazards, I constructed a little string hanging from the vent above my stove. At the bottom of this string, I placed a ball.
I then attached the two balls together -- this creates a bearing of sorts
STEP 3: Filling and Starting
Somehow, put about an ounce or so of water into your can. I used the syringe I have for measuring nutrients for my hydroponic garden... The exact amount is not as important - you just don't want to overfill.
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Now hang your can filled with water and place 4 tea lights underneath. You want very little space between the flame and can. Light up and let it sit. It took about 5 minutes to start steaming and a little longer to build enough pressure.
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With the help of my lighter (or two), I got it started much faster. The next time I do this (for fun :P), I'll have to count how many RPMs I was reaching...
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Now hang your can filled with water and place 4 tea lights underneath. You want very little space between the flame and can. Light up and let it sit. It took about 5 minutes to start steaming and a little longer to build enough pressure.
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With the help of my lighter (or two), I got it started much faster. The next time I do this (for fun :P), I'll have to count how many RPMs I was reaching...
54 Comments
AnirudhSreeram 7 years ago
Instead of having to punch holes on the side of the can, we could try to drill two holes perpendicular to each other on the curved surface and then stick flexible straws in them, with both straws pointing clockwise (or anticlockwise) and then make the joints air tight with hot glue. This way you wouldn't have to worry about 'denting' the side.
budsiskos 15 years ago
1259700020 7 years ago
how did you use a light bulb
JohnT140 8 years ago
Get your free Steam Gift Card at http://getsteamgift.org Works for all countries!
theegghead 9 years ago
That is insane! Any ideas on how to make it spin faster?
fredware3 11 years ago
Spedy 16 years ago
lasermaster3531 15 years ago
musicalbee2003 16 years ago
technodude92 15 years ago
because nobody would eat something called butt if it was actually butt. hence rump roast not butt roast...
deth2all 15 years ago
n8man 15 years ago
darus67 16 years ago
thefonz101 16 years ago
Wyle_E 16 years ago
pamandjim 16 years ago
WallaceTheSane 16 years ago
mrbob1000 16 years ago
http://sci-toys.com/scitoys/scitoys/thermo/thermo.html#heat
berrygunks 17 years ago
BLACKROD 16 years ago